Improvement in loom shuttle-box mechanisms



I. G.- CHANDLEE. LOOM-SHU'ITLE BOX-MECHANISM. I I No. 171,598. PatentedDec. 28,1875.

NPETERS, FNOTO-LITNUGRAPNER WASHINGTON, D. C,

ing into each other.

UNITED STATES:

PATENT QFFIon ISAAC. G. OHANDLEE, on PHILADELPHIA, PENNSYLVANIA.

' IMPROVEMENT IN Loom SHUTTLE-BOX MECHANISMS.

Specification forming part of Letters Patent No. 171,598., datedDecember 28, 1875; application filed October 16,1875.

To all whom it may concern:

Be it known that I, ISAAC G. GHANDLEE, of Philadelphia, Pennsylvania,have invented certain new and useful Improvements in Looms for WeavingFabrics; and I do hereby declare the following to be a full, clear, andexact de scription of the same, reference being had to the accompanyingdrawings, making part hereof.

My invention consists of the combination,

, with the shuttle-box of a loom, of a chain having one or more of itslinks of greater length than theothers, and so operated by pawls, orequivalent mechanism, as .to produce an intermittent movement of thechain, for purposes which will be hereinafter set forth; also, of thecombination, with a shuttlebox chain constructed as will be hereinafterdescribed, of a gear-wheel'having pins on its side surface, a leverwhose cam-head is -operated by these pins, and levers and pawls to workthe chain, all arranged and operating substantially as will behereinafter shown.

To enable others skilled in the art to make and use my invention, I willdescribe its construction and operation.

In the drawings, Figure 1 is a perspective view of a loom with myimprovement attached; Fig. 2, a detached view of the lever and cam endoperated by the pins on the gearwheel.

A is a gear-wheel gearing into a-si'milar Wheel, B; G, a crank-shaft; D,wooden links between the cranks on shaft 0 and beam E. F is the shaft ofgear-wheel A G, a journal or shaft box; H, a cam which revolves withshaft F; I I, projecting pins on the slotted heel of push-lever J; 'K, aslot in the heel'of push-lever J; L, a small push-lever, the heel ofwhich is pivoted loosely to the upright of beam E, and the end of whichdrops between the teeth of ratchet-wheel M, upon the shaft of whichlatter is secured a small cog-wheel N, which gearsinto and turns largegear-wheel O on shaft P. R 1% R are geanwheels gear- S S S areprojectingpins on theside face of gear-wheel R. T is a lever with a cam-hook end,the cam-surface being T. This lever is a rigid arm from thelifting-lever U, which is pivoted or swung at U, V is a pawl jointed orpivoted-to the end of lever U. W is the chain. X are lips upon the linksfor the pushlever J to bite in to move the chain.

The shuttle-boxes are connected with the pins upon the chain by means oflevers, in a manner well known to those acquainted with lifting orsliding shuttle-box looms, so that when the chain passes over thebearing-box the pin, through these levers, changes the height of theshuttle-box, so that a different shuttle is thrown through the fabric.The chain is moved by the push-lever J catching in the lips X, andpushingeach link forward. The object of this invention is toautomaticallyTstop the progress of the chain until, with one shuttle andone size or color of yarn, a desired continuous long and even strip ofpattern is woven; then to automatically start the chain again, and,after operatingin the ordinary way,

to repeat the stoppage which I have described, principally to'weavealong plain strip between ornamental patterns or bars.

The operation of my device is as follows: Y Y are lengthened links,between each-of whose lips X and the lip of the immediatelyprecedinglink there is a greater space than occurs between the lips ofanytwoadjacent ordinary links. They are longer than the ordinary links,so that whenv the push-lever J throws the immediately-preceding linkforward, that action will not draw the lengthened link far enough toenable the end of the pushlever J to grasp its lip until said lengthenedlink is pushed up by the pawl V, or by other convenient means; and untilthis is done the end of lever J slides along the surface of thelengthened link, and, having nothing to grasp, leaves the chainstationary. h

Power is communicated to the gear-wheel A, which revolves gear-wheelBand crankshaft G. This imparts motion through links D'to theweaving-beam E, and beam E, in turn, to the pawl L. The stroke of beam Egives pawl L a somewhat long reach, and as the outer end of this pawlLdrops and works in the teeth of ratchetwheel M, it pushes thisratchet-wheel round by an intermittent action, being drawn back andpushed forward, the latter part of its movement operating theratchet-wheel M. A small. gear-wheel, N, on

Y are the lengthened links;

a it;

thehub of theratchet, drives the large gear:-

wheel 0 by a slowmotion, which revolves shaft]? and gears R B R. Shaft Fpasses through a slot, K, in the heel of push-lever J,

and carries acam, H, which works between twopins,I I, on the lever, andreciprocates The push-lever J is adapted to strike the lips X of thelinks of thechain W, and pushes i the chain forward a link at a time ateach for ward movement,'or at each stroke of the cam H upon pin I 5 butwhen thelever J pushes forward thelink preceding either of the length-"ened li'nksY, it does fnot push the chain far enough to permit it tograsp the lip of the lengthened link Y, whiclilis taken by the inactivepawl V, and the chain remains at rest, and,

consequently, no change is made in the shut-p tle-box until, thislengthened link is pushed 'farl enough to allow the lever J "to take itslip,

andthis is accomplished as follows: i The IlflEt-h chine is soiadjustedthatwhen a lengthened link is reached the cam-hook lever T will havepreviously dropped over a pin, S; the slow" motion of gear-wheel R thengradually brings i around the next pin S,which, striking near the outerendiof the cam-surface T, slides alongthe cainhook, and lifts it untilits point is reached, whichraises the Whole of leversT andU and the pawlV. This pawl V then,

fora moment, becomes the assistant; of the push leve'r J, and itpushesthe lengthened link, far, enough: forward to permit the end of ithe push-lever J to take the lipof the link,

when thelip is left bare bythe dropping down of the pawl V, which latteroperation isac-' coniplishedx by the pin: S passing the lower point ofthe cam T, which allows the cam-lever T and lever U to drop of theirown.weight,

and with them the pawl V, thereby leaving bare, as above stated, thelipX of thelengthcued. link, to be acted upon bythepush-leven J, thusstarting the chain, which acts on the shuttleboxes until anotherlengthened link is reached, when the chain again becomes sta- ,fore anychanges quires the use of but a shortchain.

tionary, and the operation ofpawl just dea 7 scribed, isrepeated. Itwill thusubeseen that made. a u

This deviceis specially useliilin weaving balmorals, handkerchl Myinvention may be applied to looms th shuttle-boxes of whi areoperated bya p tern-'wheelinsteadi hain, by simply lengthening the spaces e weenthe Y catcl notches, in which the pawl bites lton tu wheel, at suchintervalsas,xifa chai used, alengthened; link would occur. Itfma be usedalso upon arevolvingbox-loorn, lengthened links 1 maybe mounted; withlike the other links, if (1 sired l Havingthus describe I claim as118W,1&I]d.l(l681l ters Patent, is-- it ,1 a a g 1. In combinatioulv vitthe shuttle-homo loom, a chain having one or more; of "its link ofgreater length than-t mechanism, substantial: duce an intermittentmovement ofe the c 2. Incoinbination w hashnttletboxchain,

as described.

Witnesses: i

CHAS, H. RoBENo ALBERT E; ZAGHERLE.

substantially as andfor the punposes setforth,

constructed as describedgfdri vingrpawls J and 3V, gear-wheel"R,pinsS,an scam T, allar-u ranged and operating together substantially 1 seme-iQHAEDLEE, 1 u

